Reenforced brake shoe



May 24,1927. V BEND v 1 629,411

REENFORCED BRAKE SHOE Filed June 7, 1926 INVENTOR VINCEB-IT BENDIX ATTORNEY PATENT OFFICE.

VINCENT BENDIX, OF CHICAGO,

ILLINOIS, ASSIGNOB 'IO BENDIX BRAKE COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION OF HJIIINOIS.

anemones]: BRAKE snon.

Application filed June 7,

This invention relates to brakes and is illustrated as embodied in an arcuate and substantially rigid shoe for an internal expanding brake. -An object of the invention is to manufacture in an inexpensive manner a very strong and rigid shoe, preferably by welding an arcuate stiffening member directly to the inner face of a cylindrical part or band to form a shoe of T-section. In one desirable arrangement, the shoe is strengthened by striking integral tongues inwardly from the cylindrical band to enage the sides of the stiffening member to which they may be welded or riveted or otherwise secured. -Another feature of the invention relates to forming a pair of projecting arms at one end of the shoe to straddle an end of an adjacent shoe, by deflecting the stiffening memberto one side of the center of the shoe and continuing it beyond the shoe to form one of the arms and providing a separate stiflenin member 14 and shorter stiffening member forming the other arm and which terminates at its front end at the angle in the first stiffening member formed by .the above-described deflection.

Other objects andfeatures ofthe invention, including various novel and desirable particular constructions, will be apparent rom the following description of one illustrative embodiment shown in the accompanying drawing, in which:

Figure 1 is a side elevation of the novel shoe described above;

Figure 2 is an inside plan-view'of the shoe, looking upwardly toward Figure 1;

and

Figure 3 is a section through the shoe on the line 3-3 of Figure 1.

In the form selected for illustration, the shoe comprises an outer cylindrical part 'or band 10, to which may be riveted or secured in any desired manner a brake. lining 12. This outer cylindrical part is reenforced by a stiffening web formed by a separate arcuate engaging along its face of part 10 and outer e ge the inner edge. I prefer welded thereto along its outer to 10 into radial ositions where they engage the sides of t 1e stiffening member 14 to which they may be welded. If desired, they may also be secured to the stiffening 14 by fastenings such as rivets 18. A hardjacent shoe.

punch tongues 16 inwardly from part.

member 1926. Serial No. 114,854.

ened cam plate 20 is shown welded directly to the end of the stiffening cam 14.

At the anchored end of the shoe, ergng member 14 is deflected at 22 to one si e of the center of the shoe and then con- 6 tinued as an anchoring arm 24 projecting beyond the end of the outerpart 10 and offset within the curve 26 of the shoe to clear the end of the friction part of an ad- In order to form a pairof such arms, I provide a separate stiffening member 28' forming the other arm and deflected at 30 toward the center of the shoe and at its forward end 32 engaging the part of stiffenmg member 14 at the angle formed by the deflected part 22. The separate stiflening member 28 may be welded at its outer edge tothe part 10 and may be welded at its forward end tothe stiffening member 14, and, if desired, it may be engaged by and secured 7 to some of the tongues 16. The spaced arms 24 and 28 are provided with openings 34 to be pivoted upon asuitable anchor and with relatively large openings 36 to provide ample clearance for the anchor of an adjacent shoe straddled at its end by the arms 24 and 28. This overlapping relationship of the two shoes, and the passage of the anchor of the adjacent shoe through an opening such as opening 36, are fully .described in Patent No. 1,567,716, granted Bendix Brake Company December 29, 1925, on application of A. Y. Dodge. This patent also describes a. post for a shoespositioni'ng member which may pass through an opening 38 formed in the stiffening member 14.

,lVhile one illustrative embodiment of the invention has been described in detail, it is not my intention to limit its scope to that particular embodiment, or otherwise than 9 by the terms of the appended claims.

I claim:

1. A brake shoe comprising. in combination, an outer cylindrical member substantially rectangular in cross section, and an arcuate stiffening member having its outer edge directly seated against and welded to the inner face of the outer member, the two members forming a T-section shoe.

2. A brake shoe comprising, in combination, an outer cylindrical member substantially rectangular in cross section, and an arcuate stiffening member having its outer edge seated against and welded to the inner face of the outer member-,the two members the stiffforming a T-section shoe, the stiffening member being projected beyond the end of the outer member to form an anchoring arm for the shoe.

3. A brake shoe comprising, in combination, an outer cylindrical member substantially rectangular in cross sect10n, and an a'rcuate stiffening member engaglng and welded to the inner face of the outer member, the two members forming a T-section shoe, the stiffening member being projected beyond the end of the outer member to form an anchoring arm for the shoe, the part of the stiffening member forming the anchoring arm being at onesidc of the center of the shoe, to overlap the end of an ad acent shoe.

4t. A brake shoe comprising, in combination, an outer cylindrical member substantially rectangular in cross section, and an arcuate stiffening member engaging and welded to the inner face of the outer member, the two members forming a T-section shoe, the stiffening member being deflected to one side of the center of the shoe near one end of the outer member and then continued beyond the outer member to form a projecting arm, together with a separate stiffening member secured at one end to the first stiffening member where it is deflected and thence deflected tin the opposite direction from the center of the shoe and continued beyond the outer member as a projecting arm spaced from the first arm.

5. A brake shoe comprising, in combination, an outer cylindrical member substanti ally rectangular in cross section, and an arcuate stiffening member engaging and welded to the inner face of the outer member along its outer edge, the two members forming a T-section shoe, the stiffening member being deflected to one side of the center of the shoe near one end of the outer member and then continued beyond the outer member to form a projecting arm, together with a separate stiffening member secured at one end to the first stitfening member where it is deflected and thence deflected in the opposite direction from the center of the shoe and continued beyond the outer member as a projecting arm spaced from the first arm, the outer member bridging across the inner ends of said projecting arms to reenforce them.

6. A brake shoe comprising, in combinamea -171 tion, an outer cylindrical member, and a separate arcuate stitfening member engaging a' separate stiffening member terminating at one end adjacent the first stiffening member Where it is deflected, and thence deflected in the opposite direction from the center of the shoe and continued beyond the outer member as a second projecting arm spaced from the first arm.

7. A brake shoe comprising, in combination. an outer cylindrical member, and a separate arcuate stiffening member engaging at its outer edge the inner face of the outer member and near one end of the shoe deflected to one side of the center of the shoe and then continued beyond the outer memher to form a projecting arm, together with a separate stiffening member terminating at one end adjacent the first stiffening member where it is deflected, and thence deflected in the opposite direction from the center of the shoe and continued beyond the outer member as a second projecting arm spaced from the first arm, the outer member bridging across the inner ends of said reinforce them.

8. A brake shoe comprising, in combinatron, an outer cylindrical member havin tongues struck integrally therefrom and projecting inwardly, and a separate radial stiffening member engaging the inner face of the cylindrical member and secured to said tongues.

9. A brake shoe comprising, in combination, an outer cylindrical member having integral tongues projecting therefrom, and a separate radial stiffening member engaging the faceof the cylindrical member and secured to said tongues.

10. A brake shoe comprising, in combination, an outer cylindrical member having pairs of integral'tongues projecting from its inner face, and a separate radial stiflening member engaging with its outer edge the inner face of the cylindrical member and arranged between said pairs of tongues.

In testimony whereof, I have hereunto signed my name.

VINCENT BENDIX.

pro ectmg arms to 

